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THE MERCK MANUAL MEDICAL LIBRARY: The Merck Manual of Medical Information--Home Edition
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Pl

Placebos

Placebos
Placebo: I Shall PleaseSidebar
The Science of Medicine: Cause and Effect

Placenta

Placenta and Embryo at 8 WeeksFigures
Problems With the PlacentaFigures

  • delivery of

  • Stages of LaborFigures
    Delivery: Delivery of the Placenta

  • detachment of (placental abruption)

  • Placental Abruption (Abruptio Placentae)
    Problems With the PlacentaFigures

  • development of

  • Stages of Development: Development of the Fetus and Placenta

  • drug transport across

  • How Drugs Cross the PlacentaFigures

  • mislocation of (placenta previa)

  • Placenta Previa
    Problems With the PlacentaFigures

  • of postmature fetus

  • Postmaturity

    Placenta accreta

    Problems Affecting the Woman: Placenta Accreta

    Placenta previa

    Placenta Previa
    Problems With the PlacentaFigures

    Plague

    Plague

    Plane travel

    see Air travel

    Plantar fasciosis

    Plantar Fasciosis

    Plantar fibromatosis

    Plantar Fibromatosis

    Plantar nerve compression

    Medial Plantar Nerve Entrapment

    Plantar reflex

    Physical Examination: Reflexes

    Plantar warts

    Warts: Symptoms

    Plants

  • dermatitis from

  • Common Causes of Allergic Contact DermatitisSidebar
    Poison Ivy DermatitisSidebar

  • poisoning from

  • Chemical Food Poisoning: Plant and Shrub Poisoning
    Moderately Poisonous PlantsTables
    Chemical Food Poisoning: Plant and Shrub Poisoning

    Plaque (dental)

    Tooth Disorders

  • in gingivitis

  • Gingivitis: Plaque-Induced Gingivitis

  • in periodontitis

  • Periodontitis: Causes
    Periodontitis: From Plaque to Tooth LossFigures

    Plaque (atherosclerotic)

    Atherosclerosis: Causes
    How Atherosclerosis DevelopsFigures

    Plaque (skin)

    Medical Names for Marks and Growths on the SkinSidebar

    Plasma

    Components of Blood: Plasma

  • exchange of (plasmapheresis)

  • see also Plasmapheresis
    Controlling Diseases by Purifying the BloodSidebar

  • low levels of, in relative polycythemia

  • What Are the Other Types of Polycythemia?Sidebar

  • transfusion of

  • Types of Transfusions: Plasma

    Plasma cell

    Acquired Immunity: B Cells

  • disorders of

  • Plasma Cell Disorders
    What Is Cryoglobulinemia?Sidebar

    Plasmapheresis

    Controlling Diseases by Purifying the BloodSidebar

  • in autoimmune disorders

  • Autoimmune Disorders: Treatment

  • in Goodpasture's syndrome

  • Goodpasture's Syndrome: Treatment

  • in macroglobulinemia

  • Macroglobulinemia: Treatment and Prognosis

  • in multiple sclerosis

  • Multiple Sclerosis (MS): Treatment

  • in thrombotic thrombocytopenic purpura

  • Thrombocytopenia (ITP, TTP): Treatment

    Plasmodium infections (malaria)

    Malaria
    Problems at the Destination: Malaria

  • during pregnancy

  • Specific Medical Conditions and Travel: Pregnancy

    Platelet(s)

    Components of Blood: Platelets

  • aspirin and

  • Treatment: Aspirin

  • in clot formation

  • Bleeding and Clotting Disorders
    Blood Clots: Plugging the BreaksFigures

  • count of

  • Diagnosis: Complete Blood Count
    Complete Blood Count (CBC) Tables
    Blood Tests*Tables

  • donation of

  • Special Donation Procedures: Plateletpheresis

  • formation of

  • Formation of Blood Cells

  • high levels of (thrombocythemia)

  • Components of Blood: Platelets
    Major Myeloproliferative Disorders Tables
    Thrombocythemia
    Other Causes of a High Platelet CountSidebar
    Spotlight on AgingSidebar

  • low levels of (thrombocytopenia)

  • Components of Blood: Platelets
    Symptoms
    Thrombocytopenia (ITP, TTP)
    Causes of ThrombocytopeniaSidebar

  • with cancer treatment

  • Chemotherapy: Low Blood Cell Counts

  • in Wiskott-Aldrich syndrome

  • Wiskott-Aldrich Syndrome

  • mean volume of

  • Complete Blood Count (CBC) Tables

  • in polycythemia

  • Polycythemia Vera: Symptoms and Complications

  • radiation effects on

  • Radiation Injury: Acute Radiation Illness

  • splenic entrapment of (hypersplenism)

  • Enlarged Spleen

  • transfusion of

  • Types of Transfusions: Platelets
    Special Donation Procedures: Plateletpheresis

  • for pregnant women

  • Autoimmune Disorders During Pregnancy: Immune (Idiopathic) Thrombocytopenic Purpura (ITP)

    Plateletpheresis

    Special Donation Procedures: Plateletpheresis

    Platinum derivatives, in cancer

    Chemotherapy DrugsTables

    Play

    Social and Emotional Development

    Plesiomonas shigelloides infection

    Gastroenteritis: Bacteria

    Pleura

    Respiratory System

  • anatomy of

  • Pleural Disorders
    Two Views of the PleuraFigures

  • biopsy of

  • Diagnosis: Needle Biopsy of the Pleura or Lung
    Asbestosis: Diagnosis

  • disorders of

  • Pleural Disorders

  • inflammation of (pleurisy)

  • Symptoms: Causes
    Symptoms: Causes
    Major Causes of PleurisySidebar

  • mesothelioma of

  • Asbestosis
    Asbestosis: Prevention and Treatment

  • pain from

  • Viral Pleuritis

  • pain in

  • Symptoms: Causes

    Pleural

  • viral infection of

  • Viral Pleuritis

    Pleural effusion

    Pleural Effusion
    Common Causes of Pleural Effusion*Sidebar

  • aspiration of

  • Diagnosis: Thoracentesis

  • in cancer

  • Cancer of the Lungs: Complications
    Some Complications of CancerTables

  • in non-Hodgkin lymphoma

  • Symptoms of Non-Hodgkin LymphomaTables

  • in tuberculosis

  • Tuberculosis: Pulmonary Tuberculosis

    Pleurisy

    Symptoms: Causes
    Pleural Effusion: Symptoms
    Major Causes of PleurisySidebar

    Pleuritis

    Viral Pleuritis

    Pleurodesis

    Pleural Effusion: Effusions Caused by Cancers

    Pleurodynia

  • epidemic

  • Viral Pleuritis

    Pleurodynia, epidemic

    Enteroviral Infections: Common in ChildhoodSidebar

    Plexus

    Nerves: Cranial and Spinal Nerves
    Plexus Disorders
    Nerve Junction Boxes: The PlexusesFigures

  • disorders of

  • Plexus Disorders

    Plumbism

    Lead Poisoning

    Plummer's disease

    Hyperthyroidism: Causes

    Plummer-Vinson syndrome

    Obstruction: Esophageal Webs
    Deformities and Discoloration: Deformities Associated With Disease

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